Mining-machine.



E. C. MORGAN. MINING MACHNE. APPLIUATIOH FILED AUGA. 1905.

Patented N013, 1914.

7 SHEETS-SHEET 1.

' Jaaa/Zai Mam/M E. G. MORGAN: MINING MACHINE. APPLIGATION MLED AUG. 4, 1905.

Patented Nov. 3, y1914.

'7 SHEETS-SHEET 2.

\ f, 1' Qniw E. G. MORGAN.

MINING MACHINE.

MPLIGATION FILED AUG,4.1905.

Patented Nov. 3, 1914.

7 SHEETS-SHEET 3.

E. C. MORGAN.

MINING MACHINE.

-APPLIUATION FILED UG. 4,1905. 1 ,1 1 6,354. Patented Nov.^3, 1914.

7 SHEETSSHEBT 4.

@Mm W t E. C. MORGN.

MINING MACHHHI.

xPPLmATIoN FILED AUG. 4. m05.

1,1 16,354.l Patented N0v.3,1914

7 SHEETS-SHEET 5.

E. C. MORGAN.

MINING MACHINE.

APPLICATION FILED AUG. 4, 1905.

1,1 1 6,354. Patented Nov.3,1914.

7 SHEETS-SHEET 6.

11M M 9 fafa@ -www l 43 uw@ MMM E. C. MORGAN. MINI-NG MACHINE.

PPLICANON FILED AUG.4.1905.

Patented Nov. 3, 1914.

7 SHEETS'SHEET Y.

4simil-.ir :'aftihn mimi hanfiiw UNITED STAES Pif'IENT FFICE.

EDMUND Cj MORGAN. C?? CHCGO, ILLINCIS,

MININGMACHNE.

Patented Nov. 3, 1914.

Serial No. 272,937.

Application filed .August 4, 1965.

Toall'whomt niaj/fwww'n.' iii f'flm. Y .5 is a wrticai section of it known that i. Emiuxi) t. Monof. i a inotiiiii-atwn ot one o?" thtl spirit-rs for cara Citizen of the Tinted Stato. rvsniing t i tying' mv mitm-s. wiioaing also the means Chicago. in tin` rotlnty of fooi; anti Statt: i for trip' ing): iin1 futter arma. the Qxttmsions of illinois. haw invented a non' anti nwvtai i t-f) .imi (if) hthru; i-icotmi to the iunior Side improvement in liiining-Machinvs. of hih i of. hearins 52. .u2 nvtvad ot the oppor sides. the following is a spccifivation. i j i' i an riiiargfaii transverw svfftion on This inwntion relatifs niort,` partimiiara tia hw AT of Vig'. 2 ot' on@ of tho cutter :trim: ami :i portion of the rntttr iloifitaile.i iii'nin. Fig. N is a iiotaii pmsportii'e- View faim ot tha way. Figs. S) to l2., inn :ar Vat-tiranti i, imm of the Channel in ..t stativ# foruwfi in the wail of the to that typo of mining machiningk .ihiifh 'irr supiiortwi upon travks or wa) anti tirwn into thv (irii't or titnnvi hr ntahhl nsilailv monntmi ipon tinniaihiiw ami serving at tht Saint tim@ as :i means t y oiwrating thv ritttoz's or mining: fonia. and i in or mi pri-intratorjv to the breakingthc inwntion hezS for onv o1' its, ohivcis io (huw aion: anti Figs. 13 to 1G. iiiprovide intim-ovuli and viiifivnt imam wit-arr: flhbire. arr thfv;it.iori\. of the tooia used. ref hy thtl mai or other material to iv niinmi i ptfviiwiyfor proiint-ihg these different is mit into Maha in the tavv of tin i1-itt f* :ftagi of tinVA i nt. .Figi i7 i\. a section-a1 vitew nii t tin @mi 0i' the. unimi, vrinfoiw tim i of the` Oiianni.#honing thv manner in whifh slahs ma) he. readily hroiien (iovfn .uol i the :1 ir is hroin-n ont after thtl final rut. transferrml to the rear. a vfilrtiwr ohifsot tu Vig. 'i i an vimxltion of tht. wetigt whit-ii this regari'i being to ln'oi'iiiv n inachinr oi i fha-.51h13 hrvaitingf. Fig. fi is a rertival Seo this Iuharartizr whivit viii tiret ont the iter tiitnai tier; showin@ a i fiiicatiori com` or criminali in thv wail ot' thi-l tnnnei. here Wistiti: :mfanf i'or tho qniric aiijastnwnt if sal'v for producing tlwftj Sinha. anti then the 'uttrr .apifhrSA Fig. L30 is apian View wedge thtl Sinha apart. causing thorn to l thvriof. partly hroitrn away. Fig. 21 a hwak from thinmin hotly of voui. ore. or iiii farther nmfiitimtion thereof. Fig. 22 other matvrial hoingniirwd. a inoiiiiiwi forti: allowing an automatic Another ohivrt ot' they invention is to promoan`v ot :imitating tiny tripping mechanism ride iniproti-ii zin-l @Ilich-nt means hervhjv for tiltx cotta arnm. Figi. "23, ire a wrtiifai Se@V a dirtiy wir.. or win of otlwr ohivttionahiv l 'anni .if=\\ hirvot on tiaiinff 32%. zi. Fig. suhbtanve. running through tho win of Fig. Qi .itl :i pian .iva t oni of the material to he minuit. may iw i'vaiiiif.' mit ont .t i anni# anti tinA emitir arm xn'ppoftefi ot tht1 win ot tivsirahle snirstanot: :intl wir ahr a. inftaiitiiratit'h iwi thv mvan aratuti from thv minml portion o? thc intim., ot thrw-t'iiig tim '.tvr into anti ont oi? poti Vith a 'ieu' to thi` attainiiwnt of this@ ion. ifi'r". :ifi i. a tw'iivai iongjitiuiinrri mais. anfi thiA arvonniiishlnrnt of vermin iii nai vivir o :i portion of thv forward part otiwr oh'ieuts whirh will iivreiiiai'tvr animar. i of tht;- inm'hinv. allowing a rt-rtzlin xx'iotiitirw the inn-anion consists in thi.` tvatnrw ot' tion in thtl inval of supporting and actuat novelty in thv roitstrtlrtion. vonriination. in;r thix t-nttor. and im allowing mi Nimah. and arrangvnwnt ot' parta. which \\.iiino\'-: mont rompi-kim; havana for miiiimting the hv iivarrihvii with rvtvrciiw to thv :if-conimatrriai rvinowii from thv liirtx vein to the punying: (iraoingra. ami mow iiariiffniarii rra, ami it'riiiin'g if stimmte troni the mateliointiii ont in thv :xg'iwnihfi viainwA riai iaiiiff animal, Fig if" if# a pian Station ln tht Haiti iiiawinga Figur'. i i\` :i pian i. Hri-ri' taiwn ih a piano inst :ilove the upvitw ot' :i mining invlvhint witrt'i'twi of" im' #we ot the intr vwin Hitlers.

partly in sitio rhtzitii r1.

Fig'. Yi sertion thcroot.

fornirti .it thv sii ringo :mii thtk ti' tiuiaiiy at: ihr

mi mit; i ngi groove i' 'i with ragpifet; to ititntf: a cmtiiroom ing tutti; :not afrit 'rear axle. Showing th.l nie-in.

n track or way.

These sections are comparatively narrow or short with respect to the length of travel of the machine, so that as the machine proceeds into the tunnel or drift, the sections which the wheels 1, Q, have left in the rear. may be taken up and placed in advance of the Wheels in front, thus requiring but a. comparatively few number of these members. They are also formed with rack-bars 8 extending longitudinally thereof or parallel with the rails 5 and in line with each other, so as tol constitute acontinuous rack for the engagement oi a traction gear 9 secured to the forward axle 2 and serving fori'the propulsion of the machine, the bottoms of the sections oi the wa).V being provided with spurs 10 for preventing them from slipping rearwardly, and if desired this rearward motion may also lbe further guarded against by the employment of one or more jacks, as shown in Fig. 3, comprising two members 11, 12, having;A serew-threaded connection With a third member 13, thereby constituting a means of forcing the member 12 against a lug 14 or socket on the side of the section 6, and the member 12 against the Wall of the tunnel.

The forward axleiboxes 15 are secured to or formed on side members 16 of the main frame, while the rear axle boxes 1T are mounted in vertical slots 18 in said side members 16 oi. the main frame, and these side members are supported upon tho boxes by means of vertical screws 19, which have their upper ends screw-'threaded `in the frames 16 and their lower ends stepped upon the boxes 17. By rotating these screws, the entire main frame, supported by said side members 16 thereof. may be adjusted in a rotary direction around the forward axle 2, without interfering with the proper engagement of the traction gear i) with the rack 8. These screws 19 may be rotated, for thus adjusting the frame, b v any suitable means, as, for example, worin wheels Q0 secured one to each of the screws 19, and each having an engaging Worm Q1 mounted l i l l i i l l upon the adjacent box 17 in any suitable way,.and if desired these worms may be connected together by sprockets 22 and chain 23, so that by the rotation of either crank Q4 on the worms Q1 the two screws 10 may be simultaneously rotated for producingthe aforesaid adjustment, the purpose of nwhich to tilt the cutting mechanism' at the proper angle for changing the direction of cut to suit the ruil of the vein. as will be hereinafter described.

T he traction gear @derives its pro elling power from any suitable source, as, or example, an electrin motor mounted directly upon the inv nue, and having bevel-gear eoiiz'ietion 26 ular shaft 27, ai; or near thi; .a worin 28,

.o worin wheels 29,

winch is secured y l while the hubs 46, 48, at the upper and lower 'U. arranged on opposite sides thereof'. and running loosely upon two horizontai shafts 31, 32, respectively. The shaft has a bevel pinion 33" engaging a bowl nur i?. on a sleoxr fifi, forming a part of. or .sevured to, the trariion gear i). Thil' shalt fu also has splined upon it a :durch nui-inbrr 33. capable ol' bring shifted by n l. or .'Z-. into engagenu-nl lwith a clutrl. :noiiibi-r :l5 on the worni wheel '10, so flou ulivi; desired the shaft 132 miybe rotalol in lbf.' proper direi:- tion for driving the inarbimimo the tunnel. ll'hen it i desired lo withdraw the mafhino. or reverse its flireition oi' motion. the shaft Ill. whirli i ronnortrd by a bevel gear 36 to a bevel pinion 3l `ef-ured to tho axle rounr-Cted with lrl worm wheel 2). This is' accomplished bv a similar moans, namely, a clutch member 2lb'. which splined on the shaft fl and adapted io engage a clutch member i) seruied to or formed on the worm ivlu-el 29, clutfh member 38 bein'.t provided with :i ,shiftingr lever lo for facilitatingv its dcsrribed operation. lt will be seen, therefore, that the rotation of the shaft 31 bv the worm Q9. will impart :i reverse rutation to the axle At the rear of the clutch is an additional clutch 200 and at tho rear of the "lutcl'i il!) is an additional elutch :201. The fixed members of the clutches 200 and 201 are i'nounted in the cross-piece 42. The i-lutches 200 and 201 are for the purpose of holding the trurk againstl movement when any suoli tendency manifests itself. Thereiore, when the truck has been moved to the proper position, it will be held in adjusted position b v means of the clutches Q00 and 201. These various partsy of the machins.i which are rarried by the truck and are adjustable, together with the side members 16 of the main trame, may be supported on the niain frame lin any suitable way. For example, the motor easing may be connected di-` rectly with the side members 16, while the shafts 3L H2. are journaled in cross-bars 41, 42: and for the purpose of carrying the cutting nierhaiiism and its power-transmitting devices. which will nou' be desrribed, tlifl traine is provided with longitudinal extensions 43. il. arranged near the top and bottom thereof. respectively. and serured to thil side members 16. Journaled in the ends of these frame extensions 43, 41. is an upright shaft 415. upon which are sti/.cured a plurality of hubs 46, 47, 18, constituting parts of the spider frames which support and rotate the cutters and breakers. as will be presently exl'ilained. intermediate ones of thesthubsy 4T 4T. are formed with rigid or integral arms 49. tour of which, in this example of the invention, are employed on each of said hubs, and alternating with the arms 49 are shorter integral or rigid arms 50, 51. SQ, :'12,

ttl)

ends, respectively, of the upright shaft, are provided with flexihiv or iiingvti arms. vonV nvvtvd thvreto hy mvans of pivots Si. so is to hv vupahie of rotating tir osvilutinvin erpentiivuiar planes, or piunv.` vxtvntinc iiinylitttdinaiiy of the sha/ft 4T. wimtvter its povition he, so that als the hinged Arms turn away fromy the face of the tunnvl or vntrv they may he moved away from thv top :io/. bottom of suchvntry to prevent, vngaginfg thvrvwith when thv mavhinv is tippvd or :viF

justvd on the front :txiv '2. its lvt'orv vxpiained. Thv top svi-iv` ot' thvsv hingvd :irinv` ion'vr out of thv mvv vt' thv top ot" 'thv tunnvi h v gravity. und urv hvid in titvt hf rizontni or opvrntirv position l :i vom .'vt mounted upon `div vxtvnsion l. whiiv thv iower svrivs of tht-sv hingvtl nrnis. vr vnrrivti hy thv hul Yiti. t'nli into ,pvi-:ttirv position l grtivitv. und nrv iii'tvd anni' from thv bottom of thv tunnvl l r uni' in nido vani 5l". supportvd in :tn r vuitzihlv uur. in* iirtivkvts 554-" on thv tintlvr idv ot' thv fruniv vxtvnsiou 44. thv :irins oi thv h-.nvr svries, or thon@ vonnvvtvd to thv huh tr. living:v liinitvd in their (ivsrvntling nivrvnivnt, hy Stops 54, oi' any snitnhlv vorwtruvtion. 'ihvrv :iro two svriv of thvsv hingvd lirios. n longr Svriva vornpri intr nrins 3T. prvifvrtthiy four in nuniltvn und u short vrivL nltvrnnting with thv urins und volnprisinf nrnuli 3h. Si?. :1nd Sil.' in thv otltvr vnd of thv longer arms 55. oi' :iii of thvwv spiders, niv mounted hits or vuttvrv H0. of any upproprint'v forni. hut prvivrtihiiY thv hifur vntvti form shown in Fig. ifi. wliivh is tidnpb vd to protiuvv thv tir t vut or it'vr" (1l. shown in Fig. Si, its thv urnv, 1i). swing around with the shaft 45. thv thin iin of voui or vrv 62 whivh is ivft livtwvvn thv hifurvutirum4 oi i thv vuttvr t3() heilig hintg :may ns thv vunvv into the kerl.

vuttvr :with lll. .73. ud-

in prtn'tn'v. tina liit'nrvutvd forni of thvI vuttingrr vnd of thv vnttvr ih t livret produvvti hlv thv vinplorntvnt ot' two; r`vpiirntv vnttvrs. ouv in thv uppvr :intl onv t in thv ivwvr sidv of thv spitivr urto. und i whivh avpurntv vuttvrs muy liv dorvtuiivd in oppositv sitivs oi' thv vpiflvr nrni. :is Jtmrn in Fig. T. for thv mkv oii :md shnplivitiof vointrtn-tivn. lutt thv pui-A tivulztl' forni of vuttvr h; ininintvrini o long' :i;-v it is vaipuhlv oi' protluvin; r :t itvrf or 'hun-l nvi in thv tavv vr wull oi" thv tunnvl or 'iriit 'i`hv Shaft 45 is rotutvti :i suiiivivht nunahvr oi' tilnvn to wirr): thv :trios t.) und .35, with thtvuttvr` tt). into thv wziil to protlurv thv ivrth` i nt thv top und hottoni of thv tunnvl. und :it

:is ninny intvrinvdutv points hvt'wvvn thv top und hottotn us thvre :Irv spidvrs 4T vnipioyvzl. and when thv korf is formed :i sutiivivnt div'- tttnvv into thv Wali of thv tunnvl. thvothvr vuttvrv. for producing thv uvvvvding Hngt. t

of the vut, sho-wn in Figs., 1t) to i2. and thv breaker for Wedging inta the karts, are then fhrought into Suvvessirv opvration. :ih will now hv vxpininvd,

ri`hv :mns .'.t to Till vt' thv rigid Spiders. i tutti thv :irlnsl .'t to 5ft oi' thv iivxihie or hinged vpidvr (whivh :iro thv short arms in evvry instunvv). :irv pro-.itivd with liexibit: vxtvnviom tiri. (1i. hf und N3. rvspevtivviy. nhivh :irv hingjvd to thvir rvspvvtive :irin hy lthv \vrt'iv.tl pimt,` tl't. n'hvrviiv thvv vxtvn ons muy hv turnvtl inwardly in horizontal piitnvzs toward thv vvntvr of rotation of thv vpidvrs in ordvr to vnrry thv vuttvrr; or tooi lhountvti in sut-h rxtvnsionf out ot' thv wirr of thv fuf'v of thv tunnvi whiiv thv :httvrs lltt t uref produving thv lirst vut, riiivfv iivxilliv vxtvtvlions nrv iig'itiijv vvvnrvd to thvir pivots (li. :tuti to thv iouvr vini oiI vnvi.l of thv v pivots are rigit1l \'-,vvurvd tno projvvtions 13S, (S9, hy means of whivh thv iivxihiv :tt-ntf; mart' hv rotntvd with rv/vpevt to thv rms to which :livr :irv phot'vd. This i tlonv :it thv wiii otY thv opvrator hy pushing or pulling," on imn- 3 divi: Til. 7i. T2. Til. nvvortiingr to whvthvr it is t dvvirvti to throv thv tivxihiv :mns into or out of cutting position, 'ihv lntndiv 'Ztl ivonnvvtvti to ti rovltingj` ivvvt Ti. pirotvd on :in l vxtvnsion T5 of thv immo Sil und having two trips or pin TV. T whivh ttrv altvr nzitvly pushvd upwnrtli)y through ywid vxtvn- Sion T5 is thv ivtvr Ti i\ oN-iilzitvd into the path of thv vxtvnsions (31%. i255 \\'hvrvhv\Y ono or thv othvr ot thv pim` Tl'. TT, will vngugv with one or the other of the vxtvnsions tlt, WJ. und rotatv thv tivxihiv arm, to nhif'h said vxtvn sions urv V"vvnrvth into n posotion vithvr :it :in :inglv to thv 11min :trnt of' thv vpitivigus hown in Fig. Z3 vi' thv drawing. or into :i

ponition Stilistuntiziliy ,#,truight or niinvd with suvh arm. u`: Lhown in Fig. i of thv tiran ingr. Whvn pin TT is rttisvd. thv l hort extvnvion (2S \\'iii liv vnjgugvd. :ind thvrvhy t struightvn out thv ilvxilllv :irni und vuusv thv vuttvrihvrvvn to vntvr thv itvrt' :ind produvv u portion ot' thv iutvrnl hrvnizittgI- ggg-mvv TS twv Fig. 1Q) fornivd in thv oppovvd favos of' thv'lt'vri". ri`hv iiwt vnv of thv v iivxihio ttrim to hv thrown ont on vuil oi' thv spitivrs iv thv onv vftrrying thv forni ot' vuttvr T9 shown in Fig. i4 for protluving' thv portion of thv hrvukingr groove shown :it Htl in Fig. i 10. This vuttvr 7), iiltv thv vuttvr (l0. may Elio fotinvd in two pivcvv insvrtvti. iiltv thtl fvuttvr (Gti. in oppohitv faves of its iivxihiv. '-ztrri'ing urni, suvh fivxihlv :xrni hvingr thv onv nmrirvd (ifi. whivh imnivdintviy follows t thv vhvrt fivxihiv nrni 59 of thv top und hottoin spidvr."` mid tht` nhorty rigid firm 53 of t thv interin'ctiintv spiders; that. in to suv, it.

i` thv irvt onv of thv short )firms to tinter thv kvrt' after all of the long arms have gono around. As shown in Figi i4. tht` vuttvi' 'T9 arv iorrnvd with :tnguhxr or interni v\tvn ions 7th, whvh protinvv thv portions Sti ot' the hrvnking groovv. Whiie not intert tering with the fin or rih G2 ivft hy the eutters 60 at the inner side of the kerl. Une revolution of the cutters 79 in each kerf will ordinarily be suflicient to produce its allotted portion of the breaking groove 78, and consequently after the arm 63 haspassed .out of the kerf it is again thrown back into its angular position with respect to the spider arm by the operator imparting a re-` verse movement to the handle 70, and in fact, to all of the handles, to 73, one for each of; the spiders, if it is desired to roduee the breaking groove in all of the kerfs. This opposite movement of the tripping handle throws the pin or trip 76 up into the path of the extension 69, and returns the flexible arm into the position shown in Fig. 3, the extension 68 passing between the pins 76, 77, at that time. Each of the other handles, 71 to 73, inclusive, is providediwith a tripping mechanism similar to the trip pins 76, 77, and rocking lever 74, one tor each of the spiders. The rocking lever for the handle 71 is shown at 81, pivoted to the extension 43, and its tripping lugs at 82, 83. The rocking lever for the handle 72 lis shown at 84, and its tripping pins at 85, 86, and this lever, together with the one for the remaining handle 73, is pivoted to the extension 44, the latter lever being shown at 87, and its tripping pins at 88, 89. These are turned downwardly, while the pins for the lever 84 are-turned upwardly, so that the former will trip the flexible arms belonging to the lower one of the spiders, of which the hubs 47 are parts, while the latter tripping pins 88, 89, will trip the flexible arms belonging to the lowermost spider, of which 48 is the hub.

It is evident that because of the nature of the framework of the machine the handles 72, 73 as well as those designated 70 and 71 are accessible from the sides of the machine'. If the machine is particularly wide the handles may be reached by means of a rod or other device held by the operator.

The flexible arms lill on all of the spiders having traversed their respective kei-fs and being again thrown back into the angular position with respect lo their spider arms, as shown in Fig. 3, the next flexible arm 64 on each of the spiders is thrown out into operative position in a manner similar lo that described with reference to the arm 63 bv the same tripping mechanism which operated upon the arm (33. and the additional portion 90 ot' the breaking groove or channel 78 is then produced. by the lateral or angular extensions 91 oi' the cutters 92 carried b v these flexible arms 64, the only essential ditference between the extensions 91 and the extensions` 79 being one of length, so as to cnt the breaking groove a l little deeper than the cut produced by the extensions 7 9a. The arms 64 having passed around or .fully traversed the korf, they 1n tnrn are thrown back again into the position shown in Fig. 3 by the trip mechanism before described, and the next flexible arms G5 in the series are then projected, in a. similar manner to the operation of those already described, hy a proper manipulation of the tripping handles, and the an ular extensions Ul ol' cutter or bit 94 finislgi the formation of theY breaking groove 78 by drawing the bottom or inner walls of the groove to an apex, as shown in Fig. 12, whereb ,the slab of coal or other material will reak more readily along a definite line when the breakingdown wedge enters the kerf. This wedge is shown at 95. and is carried by the next one of the flexible arms in each of the series, the same being the arm 66, and it is thrown outwardly into operative position so as to enter the ker, in the same manner that the other flexible arms are actuated. The wedge, vas better shown in Figs. 17 and 18, is tapered in two directions; that is to say, in a direction lengthwise of the spider arm which carries the flexible arr'n 66,when the flexible arm is in its extended or operative osition, and also transversely of this direction, with the narrower end of the wedge pointed in the direction of rotation, so that the wedge will more readily enter the kerf and by gradually forcing the walls of the kert apart cause the slab 4of coal or other material to break down and fall out. lf the wedge be tapered both top and bottom it will effect the breaking of the top lslab as well as the bottom one, as shown in F ig. 17, but whether it be provided with this double taper or not will depend upon the character of the material being mined, in some instances a single taper being sufficient, vihere a wedge is employed on every alternate spider.

In order that the intermediate spiders may be adjusted vertically on the shaft 45 for changing the levels at which the cutters enter the wallif desired the shaft in the vicinity of the hubs of" these spiders is provided with a spline 95, over which the hubs slide, while being compelled thereby to rotate with the shaft, and the hubs are provided with set-screws 96, 97, or any other suitable means for holding them to their adjustment on the shaft. The shaft is supported against downward movement by the lower one of the hubs 47 taking its bearing upon the frame extension 44, or directly upon one or more shims 98 interposed under said hub when the latter is adjusted in a direction away from the frame 44; and if greater support than this be needed for the shaft, its vlower end may be stepped on a bearing 99, which is in the form of a shoe, sliding upon the bottom of the tunnel, and formed on or secured to the cam 54", or given any' other suitableconnection or support on the frame of the machine.

The shaft #l is rotated 'ny the5 1111311111' if, l through :i suitable train of fea-1w 10H, 101. l 102. the first of which is keyed 1.11 the Shaft l 451, and the lust of which if: iniininifwl lmsrlv l Upon the shaft. 27, while the iiiernnulintn i gear 101 is an idler 111011111011 11.111111 1 wl- Hhafl 103 Secured in orosslmm 111-1 extend l ing athwrirt, fhe machine; 1nd ronnnrterl tn l 111e Side frames 16. Th1 gen1' in' pinion. lll! ronStitutoS one member nf .f1 1:11111'11` :m11 is provided on its; lower fa ze with. cl ich ienih 105. adapterlfo engage 17 `t`n il 111111111111111 member 106 of Suid 111111011. nliivli in von nmfted by a spline T Willi Lhe shaft Qi', 11nd is snpportml 11j* :1 f-l1 .ng )olie 11111. Capable of throwingr it into engmgi-ineni with the clutch teeth 1.05 when it is ilelirwl to rotate the Clutter shaft 13. yThisy lifting yoke may be actuated at the will of the oprrzilor hy means o1 any sizilal'iliff handle 109.

ln the modification shown in Fig. 19. is provided a means of adjusting the Spiders with greater facility than would he 'possible with the eebscrew 9G or 9T already ilewi'ihed. ln this modification. the upper siffle nf ihn spider il; provided willi two dungen 110. 111 onder which engage two ehoes 112 seeured to the lower endg of tivo links 113 on diametiif'nlljf oppone, sides of l'he. hnh 17' of the spider. the ngncr 131.111!l of. said linlis heilig pivotcd. reipnmivoly. 1o thi` branches of 11 voli 11.4.. whirli i@ 'fnl frnmed in n support 115 11n 1*'1111111-, rxlnnsion 1?. ind hm 11n :mn lll-T1 cfnimitliingz ei'- fei. with inl j/volw. 11 1111`1l-1 1`11 i 'W 1h11. :firm being 011111113011211 to 111e 1111i 111Y .1 :c-w tlii'eanleilirod 1i? passing: 1h11'. i1 :111 :ihmY i, 11111111` 11h on winnie-ion lil. nl min-,ving :11i- Vhinting!! 1111( 119 on the olher de of 1h11 innment.

nol

1111L funnel when 1111 :www lin/1111 1111vx 1031 i'z' machine i-. 1n liv l1 11191111 1111.

dln'ig's. :1111i i 1 -on'n 11.11 autom-ntic mini 121. 11111111111 on 11 stud 125, and connect- 11l ro the uwlung lever S1. which actnates im* trip lngS 11;'. 5?. by means of" rods 126, 11m. nonnwls-d together by n sel-screw 128,

` :1111i hm ing.r :1 pin 120 running in the groove nl 111:1 124. the rofl 1213 having the handle il. 'whereby 'tho dmiw nmv he. actuated by 11111111 if dvdrw! when Set-nf'rew 1528 is re- 11=11,-111 l. The pvriphery ol' the Ginn 124 is inovidril with {g1-:1r teeth lill). meshing with :1 pinion 121 on the upper enfl of shaft. 27, 11nd if one of thi-so automatic devices.y he provided l'oi' em'h of the spiders there will, of course. he 11,, many as there are Spiders, :1nd the 1linft 2T will he provided with as 11111115' pinions 131 ns there nre :ams 124 the single example rklinwn in Figs. 11nd .23 boing sillinenh however.r for the purposes of illustration :1nd an undersit-nnding of this feature of the invention. i

ln the moi'lificution shown in Fig. Q4. is illustrfnted 11 substitute for the Hexible arms G3 to 6G. whiuh Carry the of cutters for nrodnr'ing (he hreiiking groove 78 and the. breaking wedge 94. This modification rronsivis in `:lin'ingr the supplemental arm longitudinally nl' the wider arm which snppnrt il'. instr-nfl if (leflei'ting Snfh supplenienl'nl :arm on n vertienl nXiS. ns iS Clone ith the ngihlenienlnl firms 63 to 66. The ipfilonnfmiil :inn in this modified form is inilimnwl nl. 12K. and han 11 Shrink 183 slidingr in 1.5111 11111 111 the spider arm. the one rvp1' nt1'1l in thhl figur@ heling the arm 50. 'lflw innli 11i' the supplemental arm is providml with :1 pin o1' 11151 134 engaging i'n a :51111 lili 111 11 shiftingr lever 136 pivoted to 1111A 111'111 .311. :1111i so arranged 11S to he @truck l l1." f1111 1n' the other of the trip lugs 82, 83,

infirm-e prnifclwl alternately down into 1h1- [111111 if thilewr 13171. :1S before described with referfnfe lo the projections 68. 69. the Vin #Il 1-11'ing' to throw the Supplemental firm lili! 1111im112ily. :md the pin 92 noting lo willnhsm it.

Yln Fig QT 111111. 26 is shown 11 inodication :if the mifexw 11nd their woll 11s .1n aftnfhn'ienl for the machine Wvhvrelgv the dirtv vein or objectionable trnrnin removed separately from the de- 111111111 1w 111l 11ml. ln Fig. 23 the shaft is 7.1m f1N .livingprovided at its upper and lower endn with the same form of spider :11111 antler ilecriberl with reference to Vig. 1 11 fi. :1nd one of the intermediate g1ifle1 1T in thisy View is also the Same as tho inanm one if the inlermerlinte Spiders in the nforeniil figgnres but in lien of the, lower one of 1h@ intermediate Binders., are. suhsti 11111111 two Spulen of Spoiial form comprising!y hull@ 1115*. 11nd nr1n 139. These Spiders and thon' 1:1111 ing nmihiinisin are the smne in con- 'er1-111.11011. and henne the description of one `will insw'fe'r for 11111.11. Suffice iL to Say that iliey are reversed on the shaft with recarrying Spiders. as

Spect to each other. On the outer end of each of the arms 139 is pivoted a disk 140,

Vwhich serves as a substitute for the flexible with, is a disk 142. whose periphery is pro-- vided with circular orifices 143, i which the cutter disks 140 are situated androtate, and this disk 142 is in substantially the same plane as the disks 140, and carries in its unroken periphery, at as many points between the orifices 1.43 as desired, a number of the cutters 60, which, as the disk 142 rotates, produce a kerf the same in form as the kerf 61. The peripheries of the disks 140, however, being Within the circle of the periphery of the main disk 142, the former disks will not effect the cutting of the Wall excepting when the cutters mounted in the peripheries thereof are turned outwardly through the apertures 143. rThis rotation of the disks 140 for accomplishing that result is produced successively as the main disk 142 rotates in the same or substantially the same manner the supplemental arms 63 to 66 or 132 are thrown. into active position.

The arm 139 of each of the disks 140 has rigidly secured to it in any ,suitable way a ratchet 144. and pivoted to thc disk is a spring-actuated pawl 14.1 arranged to engage this ratchet for preventing the disk from making a retrograde rotation as its cutting tool engages the wall of the tunnel. The cutting tool of the disk within the wall having traversed the kerf and performed its allotted function, however, the disk 140 is rotated a quarter turn in a direction away from its ratchet. 1li- 1 when one of a series ot lugs 146 on the face of the disk 14() engages one of the trip pins or lugs 32. S3. which niay'he thrown downwardly into thi path of the lugs 146 at the proper time hy the operator, as before described. ll'hen pin Q is thrown downwardly it engages one of the lugs l-lt at the inner side of thc series. ri-next the shaft 15. and that causes the disk 140 to turn Aforwardly, or in the saule direction in which it is revolving, thus carrying its cutter into the recess 143 and out of the wav of thc Wall. lVhen the pin 8? is thrown downwardly, however. the lugs 14o are en# gagged on the outer side of the series. and this restores the disk 140 to its former or operative position. Thel trip lugs or pins 82, 83.

are thus manipulated at the will of the operv alor as required for successively throwing the tools carried hy the various disks 140 ifm; and out of their operative positions, or, it' desired, such manipulation may he donc automatically hy the construction shown in lfigs. and 23. An advantage of this form of spider and cutting mechanism is, that thc main disk 142 and the smaller disks 140 constitute together a platform or revolving1r table on which to receive the material cui out and thrown down. and which hy its rotation serves to conduct the material to the rear. In Fig. 25 of the drawing, these two table-like forms of cutters are illustrated as cuttincr out what is called the dirty yvein. 11T. w iich occurs in coal mines, and which may he constituted h v ordinary dirt or .So-il. slate, or other material, the presence of which in the coal or substance being mined would be ohjectionahle. The material cut out of the wall by these tahlo-like cutters and thrown down thereon by the wedge or breaker, or by any other means. is carried around with the lower tahle or disk, on which it rests until it strikes a defiector or shield 148, which extends partially around the edge of the lower main disk 142 and tei minutes in a chute or trough 149. ln this cxempliication of the invention. thisI shield 1718 is of sufficient height (as shown in Figi. 25) to practically close the space between the disks 142, ,so that all the material car ricd on the lower disk 142 will strike against the shield and he finally worked into the chute 149, whence it falls in the tunnel :it one side ot' the machine. lf the disk 142 rotates toward the right as viewed in Fig. 2G. assuming' the lctthand side to he the 'forward end oi' the machine. the shield or deflector 14S should he located on what would he the right-hand .side oi' the machine, while thc chutev 14) should he located on thc oppo .site or lefbhand side, so that while the, coal or valuable material is passed out on the right-hand side by the other cutters, or hy the sweep of the bottom spider arms. the dirty material will ne thrown out on the opposite side and kept separate trom the material of value.

"lhe spiders 13S, illl, are adjustallf vertically on the shalt 45. so that the cutters carz'icf'i thcrclrv may he arran.\l at elcvatioifisy to suit the position ol' the vein to he cut out und when .so adjusted they may he fixed iu place hv fet-screws 150. o1' any other suit- :lhlc devices, 1"1 being a collar fixed to the shaft l5 hy a set-screw 152. il desired. for affording hctler support for the upper one ol' the spiders 108.

Claims.

l. In n machine for the purpose described. the combmation of means for cutting kerfs 1n the mine wall, and means for cutting;r lat-v eral breaking ,grooves at the inner edges of the kerfs. at an angle to the planes of their "IWSed sides. whereby the Qlahs between the kerfs may he broken down.

ln a marhine for the purpose deserihed. the t'olnliii'iation of means for rnttii'ig keria' in the mine wall.y and a succession of cuttersy of dil'ori-nt size for Putting lateral breaking! groote@ at the inner edges of thi kei-tl at an angle to the planes: ot' their opposed eidef.. hereby the alabal between tht` kerfs may he brolon down.

Il. ln a mat-hine Vtor the purpose deer'iilied. rotating mvaw for vatting kert's in the niinv wallA 1in-an.` rotating ('onrentritall with aaifl first uiting imam for cuttingr lateral breaking grooves at the inner migra of the kei-'h at an angle to the planes `of their op posed sides. whereby the slabs between the lierfs may he broken down.

4. in a nnuhine for the purpose desrfribed. the Iomhination of means for Cutting! karts in the mine wall`r and a Ianoression of entiers following naif! kertr-utting means for rutting lateral breakingr grooves at the inner whine' of the lzerfs atan angle to the planes ol' their opposed aides. Whorebv the Slabs between the lterf# may be broken down.

5. In a mai'hine for the purpose deferila-o. the Combination oi means for cuttingr lteri's in the mine wall. and a Sueeession ot" cutter." following said ker'f-rfutting means and proieetinll into flill'nrvnt planw` ot niowuu-nt. for Putting lateral breaking grooves at the inner edgarof the keria at au angle io the plano-e. of heir oppowd sides. whereby the #lala between the ltert's ma),r he ln'olien down.

(i. in a inarhine for the. purpose deseribed. the eomliinatirm oi meansy for cutting keria in the niinn fall, means` ior cutting lateral breakin;r groove, at the inner edge@` ot the. ltr-rfa at an angle to the planes of their op posed eiflea. whereby the slabs between the lwit's may he broken down. and means for throv.'in; r the vrome-hurting moana into and out of opri'ative poSition. t

'i'. ln a niarhine for tho purpose described. the, combination ot moana for cutting lerfs in the mine wall. and means operatively conncetvtl to and moving with said liertmutting mean@y for enttinff lateral breakingy groo'febl at the inner edges of the keria at :in anglo to tho planes oi their opposed fares. wherebv the .alaba between tinl lie-rfa may he broken down.

3. in a machine for the purpose described. the combination of means for nuttin;r lies-ie. in the mine Vall. mean; for Cutting` lateral lneaking grooves at the inner efltife` of the korfr at an angle to the. planes` of their opposed eide and means tor Wedginjj the alaba between the karts apart for breakingy them down.

0. in a 'machine for the purpose, deseribed, the combination of rotar# means .for cutting ltorfs in the. min@ wall, means rotating 1n an arf: of Smaller radius than the are of movew ment of the firsty said means,and means for projerting the second said cutting means into a lin(l of movement of increased radius for hinting lateral breaking lgrooves at the inner edges ot' the nerfs at an angle to the planv ot their opposed faces.

1H. ln a niavliino for the purpose defwribed, the combination of means for cutting kerl's in the mine wall, comprising a v sei-iw ot' revolving s] ider arms and cutters llwietn. and means t'o mattingr lateral break- 'umV grooves at the inner edges of the. kerfs at an angle. to tlul planes of their opposed iai'ea. rompi-hing pidrr arms revolving with the first Said arms and shorter than the latter. and latei-all'v-projeeting cutters on the sawond said spider arms, movable into are# of rotation of different, radii.

l1. ln a maehine for the purpose de,- avi-ihod` the i-olnhinwion of means Vfor Cutting kerfs in the mine wall. comprising' a serien of revolving nutten". means for eut-ting lateral breaking grooves at the inner edges of the ltel'fsat an angle tothe planes*y of their opposed 'fat-es. comprising a series of revolving eutters movable with the first said cutters. and followingr the Same. and projerting at an angle to their plane ot' revolution. and a Wedging breaker suet'eeding the last. laid entiere.

ln a inafhine for the purpose derribe-fl. the, eonibimition of moans for Cutting ltrfs in the mine' wall,` comprising a series of rotola-ingr cutters. meansl for cuttin; lr lateal breaking groove'a at the inner edges of the korfu at an anglil to the planes ot' their opposed faena'. Comprising a seffonfl serien of revolving hutten` revolving with the tiret .Caid seriesand movable into ares of rotation of different radii. and projecting at: an angle to th(` planea` of their rotation.

1?). ln a maehine for the pur )ose deseriborl. the eomhination of a sha t. means for rotating th(` name. a, plurality of rut'- tor-earrying frames mounted on. and adjustable longitudinally' of, Said shaft` cut ters .'evured in eawh oi said frames for forming! hert@ in the mine wall. and wedges also Secured in .Quid framing for wedging into aid ltert` and l'ii'ealiingir doujn the slabs between the karts.

i4. ln a maehine for the purpose described. the r-ornbinatipu of a al'iaft, means for rotating the saine. a plurality of cuttermirrving: frames mounted on aaid shaft. Cut.- tera secured in eaeh of said. frames for form ing karts in the mine wall. and wedges also fat-,Cured in Said fr-nies` fory edging into the kei-fs and breakingr down the Slabs between them. and a shoe supi'iortingv the lower end ot the shaft.

1.1. In a machine for the purpose de serihed. the combination of means for min ing a section of the wall. means for casting the same to one side of the tunnel, and means for mining another section of the wall and oastingthe same to the opposite Side of the tunnel.

lf3. ln a machine for the purpose de scribed, the combination oi' a rotating means for cutting keris in the mine wall, a wedge rotatable with the rst said means, and means for moving said wedge into breaking position in the track ol' said cutting means through the korf for breaking down the slabs produced b the kei-fs.

17. In a mac ine for the purpose described, the combination of a. truck or carringe having supporting wheels whereby the same may be run into a mine entry or tunnel, a frame pivotall su )ported on said truck on an axis extent ing lengthwise of the y axes of said supporting'wheels, means for adjusting sald ramen and down on said pivot whereby it `may made to rise and fall at one end, an upri ht shaft journaled in the lutter said end an supported. thereby, cutters secured 't o and rotated by said shaft in ahorizontal plane, and means mounted upon said trame and connected with said Shaft for rotatimgr the shaft.

18. ln a machine for the purpose described. the combination of means lor cutting out a Section of the wall of thc mine, embodying a rotary table-like men'iber for receiving said section, and a breakin;1r means arranged above sair'l table-like member and traveling in a circle eonm-ntrirtherewith. for breaking down tno wall .section whereby it is caused to i'all upon said table-like member.

19. ln a machine for the purpose flescribed, the combination of means for cuttin two horizontal kerfs in the mine Wall, em odying a table-like member, means for rotating said table-like member continuously in the same direction, and a breaking means following the said cutting means into the kerf cut thereby and traveling continuously about the axis of said table-like member.

20. In a machine for the purpose described, the combination of means for cut* ting horizontal kei-fs in theI mine wall. emhodyiu;r n table-like member rotatable/oontinuously in the same direction for receivingr the material r-ul from the mine wall. and a wedge rotating with said tnblolike member for entering' onel of said kerfs and break- .ing down the section of the wall lyingr between the .ke-ris.

21. A miningr machine having means for cutting out two sections of the mine wall and keeping the sections separate from one another while being cut comprising in combination means for cutting three horizontal ei-'fs in the wall of the mine, the lower two cutting means embodying table-like memlers for preventing! the particles of the upper ont from eommingling with the particles of the lower cut, and means for operating the cutting means and for rotating the. lower one of said table-like members for conduct ing the particles of the wall received thereon to 'the rear.

22. ln a mining machine, the combination oi means for cutting out a section of the mine wall embodying two table-like members provided with cutters. rotatable disks revolving with said members, means for rotating said tahledike mcmbrrs, means for impartingr an intermittent rotation to said disks, and ruttrrs mounimi upon said di ks.

23. In a mining machine. the combination of a lablelike member rotatable upon an upright axis. indepeml'ently rinatable disks revolvimr. with said member. entiers carried by said wsks. means i'or rotatin; r said memn ber and means for intermittently rotating said disks.

24. In a mining machine, the combination of a rotary table-like membe imlependentl'iy rotatable disks revolving with said member. cutters mounted on said disks, a wedgfingry means moving around with said member for entering the cui. and breaking down a ser tion of the wall, means for rotating said member and means for imparting to `said disks an intermittent rotation.

25, in a mining machine. the eoinliiuniion oi' a table'like cutter. adapted to eut :i kerl in they wall of the :nim :1 uellpingf breaking moans arranged over mit! talwlike ruttei. and means for rutuiilioj ilu` taille-dike entier nml causing the breaking; means: lo rezolw.

2th ln a mining machine, the combination oi' means for euttim'fv a plurality of horizon tal kerfs in the wall of the mine.l one of said korf cutting means embodying a table-liloI member for receiving particles of the wall thereon, a wedging breaking means ar ranged above said table-like member and adapted to enter one of the upper kerfs and break down a section of the Wall, and means for causing the said breaking means to revolve above said table-like member.

27. In a mining machine, the combination of means for cutting a plurality of horizontal kerfs in the mine wall, one of said korf cutting means embodying a table-like member, a breaker, means for rotating said table-like member about an upright axis, and for revolving the. breaker concentricallv about said axis above said table-like member to canse it to enter one of the upper kerfs and to break down n section of the wall upon the table-like member.

28. In a mining machine, the combination of a kerf cutting means embodying a table like member having` a. plurality of circular apertures and independently rotatable disks mounted in said apertures to form a com tinuation of the surface of said table-like member, means for rotatingr said table-like member, means for imparting anintermittent rotation to said disks. a cutting tool carried by one of said disks` and a breaking,r tool carried bv another one of said disks.

Ql. ln a mining machine, the combination ot' two tableslike members arranged one above thc other on an upright axis, means provided on said members for cutting kerfs in the wv all of the mine whereby the section oi the wall cut out by said members and means `will be received between the members, means for retaining upon the lower one of said members the particles of the Wall thus received for a portion of the rotary travel et said members, additional kerf cutting, nie-ans mounted above said members and rotatable upon the same axis, and means revolv ing in the same circle as said additional hert cutting means for entering the kerf cut tl ercby and breaking down a part of the mine wall.

2W. in a machine for the purpose de- -ibi-d, the combination of a shaft, means for imitating; the same., a plurality of euttei carrying.a frames mounted on said shaft, cntters setnred in eachI of said frames for Yforining` kcrfs in the mine vvall, and wedges also wi'fured inY said frames for wedging into said korf s and lneakingbY down the slabs between the kcrls.

Ill. lu a mining machine, the combination of a plurality of continuously revolving euttcrs revolving about an upright axis and adapted to form simultaneously a plurality nt keri's in the mine Wall, and breaker wedges following said cutters and revolving about, the. same axis, for entering said kerfs respectively and breaking down the sections nl' the wall between them.

Tn a mining,r machine, the combination ot means for cutting' out a section of the ruine ivalhembodying a table-like member on which to receive said section when cut out, a icldv or defieetor arranged at the rear oi' said member on one side thereof for de.- lleriina tht` material to the other side there- U'i'- and a chiite arranged at the latter side ifr rccrh ing; the lletiecied xnaterial. i

133. ln a m ng machine, the combination with a support, of a cutter-carrying arm pivotcd to the same, cutting mechanism con-- nected to said cutter-carrying arm, and means for supporting said cutter-carrying arm at various elevations during itsl rotation about said support.

fit. ln a mining machine, the combination of an oscillatory cutter arm provided with a. cutter adapted to enter the wall of the mine for forming a kerf therein, means for revolving' said arm about an upright axis to cause it to sweep through the wall, and means whereby said arm is allowed to dcseend to a lower level than the kc.'` after waving the kerf.

if In a mining machine, the com tira of an oscillatory cutter carrylng arm provided with a cutter adapted to enter the mine Wall for forming a kerf therein, a horizontal cam for supporting said arm and causing! it to assume di'erent planes, and means for causing said arm to revolve about an upright axis.y l

36. In a mining machine, the combination of an oscillatory Cutter carrying arm provided with a cutter for forming a kerf in the wall of the mine, means for causing said arm to revolve about an upright axis, and means for lifting said arm away from the floor of the mine after it leaves said kerf.

37. In a mining machine, the combination of a. suitable frame, cutting means carried thereby, and means` carried by said tting means *for braking loose the coal as said cutter advances.

38. ln a mining machine, the combination of ,f1 suitable frame, cutting means, and ring inechanifin carried by said cutting means.

S9. ln a mining machine, the combination of a suitable frame, cutting means. and a coal I'Jrcakin; enlargement carried by said cutting means.

40. ln a mining machine, the combination of a suitable frame, cutting means, and a Wedge carried by said cutting means.

41. In a miningr machine, the combination of a suitable frame, cutting means, and a Wedge on the lou-er side of said cutting means.

42. In a miningr machine, the combination of a suitable trame, a fiat cutter havingl a curved outer edge, means for drivingv the same, and means carried by said cutter for breaking loose the coal as said cutter ad vant-es.

43. In a mining machine, the combination of a suitable frame, a dat cutter having@y a curved outer edge, means 'for rotating said cutter, and jarring mechanism carried by said cutter.

44. In a mining machine. the combination of il suitable traine. a flat cutter having; a Curved outer edge. means for driving,r :said cutter, and a coal breaking cnlargeuurnt car ried by said entier. i

45. ln u minifxg: machine, the combination of' a suitable frame. a flat cluter having a circular outer edge, means for drivii'inr the same. and means carried hv said cutter ,for breaking loose the coal within'the boundary line of said cutter.

46. In a` mining machine. the combination of a suitable frame. cutting means carried thereby to make a plut-alim7 of slits in the coal. and means carried by said cuttingr means` for breaking loose the coal between said slits.

.ln a miningl machine. the combination a suitable frame, @cutting means earricd thereby to make a plurality of slits in the coal, and means for applying a breaking force to apposite sides of the severed section of coal.

48. In a mining machine, the combination ot a suitable frame, a cutter, means for rotating same, and Wedges on opposite faces of said cutter.

49. In a mining machine, the combination with a frame, of cutting means and wedging mechanism mounted thereon to move in concentric circles, and means for rotating said frame together with the cutting means and wedging mechanism.

5f). in a mining machine, the combination with a frame, of cutting means carried thereby to make a plurality of slits in the coal, andmechanism rotatable concentrically with said cutting means and extending into said slits for breaking loose the coal between said slits.

51.. In a mining machine, the combination with means for cutting a plurality of kerfs in a mine Wall comprising a table like member, means for rotating said member, and breaking means following said cutting means into the kerfs cut thereby and traveling about the axis oi said member.

52. ln a mining machine, the combination with means for cutting horizontal kerfs in a mine wall comprising a table like member rotatable continuously in lthe same direction, and a wedge rotating with said table like member for entering one of said kerfs and breaking down the section of the wall lying between the kerfs.

53. In' a mining machine, the combination with a table-like cutter capable of cutting a kerf in the wall of a mine, of Wedging breaking mechanism having an axis co-incident with that of the table like cutter, and apparatus forrotatingtbesaid cutting means and the said Wedging breaking mechanism.

54. In a mining machine, the combination of a frame, of cutting means carried thereby to make a plurality of slits in the coal, means also carried by said frame for applying a breaking force to a cut section of coal., the axes of said cutting means and said break ing means being coincident, and apparatus for rotating said frame together with the cutting means and breaking means.

In a mining machine, the combination ol' a frame, of a cutter thereon, means for rotating said frame and cutter, and a wedge also on said frame and rotatable therewith concentrically with said cutter.

5t?. In a mining machine, the ccgimbination of means for producing a plurality of kerfs in the material to be mined, and means in the lui-rfa operating simultaneously with said cutting means t'or applying a breaking force to opposite sides of separate sections of the material for breaking down said material on both sides of the intermediate kei-fs.

The combination of a rotary cutting mechanism rotatable in a given plane during the cutting operation, means for .supporting said mechanism, and means for shifting the plane ol rotation of said cutting mechanism during a predetermined portion of its rotary travel.

5S. The. combination ot' a plurality Vof rotary cutting mechanisms operating in superposed planes during the cutting operations, supporting means for said cutting mechanisms, and means for shifting the nppei-most and lower-most cutting mechanisms to dilierent planes of rotation while the cutters are notI operating upon the material being mined.

.59. The combination of a plurality of cutting mechanismsrotatablein given separated planes during the cutting operation, a common supporting means for said cutting mechanisms forming a common center about which said cutting mechanisms rotate, and means for shifting the uppermost and lowermost cutting mechanisms into lower andl higher planes of rotation respectively during predetermined portions of the strokes of said cutting mechanism.

In witness whereof, I have hereunto set my hand this 2d day of August 1905, in thi` presence of the subscribing Witnesses.

EDMUND o. MORGAN.

Witnesses E. (l. SEMPLE,

. H. SEEM. 

